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Credit: Getty Images

MANCHESTER, ENGLAND - OCTOBER 11: Artist Gina Czarnecki poses next to one of her works entitled Palaces which incorporates milk teeth donated by members of the public on October 11, 2012 in Manchester, England. Czarnecki's Wasted Works Exhibition, which is part of Manchester Science Week, explores the taboos in society around waste body parts, including fat from liposuction, discarded hip joints after hip replacements and children's milk teeth which could be used for stem cell regeneration. The exhibition at Manchester Science Museum runs from 27 October - 4 November.(Photo by Christopher Furlong/Getty Images)